Home / 328,790.12-453,317.28-268,299.32

Finding the Fourth Proportional to 328,790.12, 453,317.28 and 268,299.32

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Solution

The fourth proportional to 328,790.12, 453,317.28 and 268,299.32 is: 369,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,790.12 : 453,317.28 = 268,299.32 : x
  2. Step 2: Convert to fraction form
    328,790.12/453,317.28 = 268,299.32/x
  3. Step 3: Cross multiply
    328,790.12x = 453,317.28 × 268,299.32
  4. Step 4: Simplify right side
    328,790.12x = 121,624,717,968.25
  5. Step 5: Solve for x
    x = 121,624,717,968.25/328,790.12
  6. Step 6: Final answer
    x = 369,915.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.